The cut of a fine opal should be symmetrical. If it’s a cabochon, the dome should be well rounded. Domed surfaces give the best play-of-color, and make the stone appear vivid from most viewing angles.

Learn more› Live updates By The Deals Team and Nathan Burrow It’s Cyber Monday! See the best Cyber Monday deals our experts ...

Should you find yourself on this page, it suggests that you’re seeking the most effective water softener resins to efficiently remove iron, magnesium, and calcium from hard water. It’s also ...

Kelly R. MacGregor receives funding from the National Science Foundation, the Keck Geology Consortium and the Minnesota Environment and Natural Resources Trust Fund (ENRTF). The answer is all ...

This lovely two-bedroom first-floor flat is perfectly situated in the vibrant and well-connected area of Kennington. Offering a nice sized and bright living space, this flat is an ideal choice for ...

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India's Directorate General of Trade Remedies (DGTR) has recommended anti-dumping duties on PVC resin imports from seven countries, including China and the US. The DGTR found that these countries were ...

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Learning how to fall asleep in five minutes is an incredibly useful skill and one that you’ll use throughout your life. But is it possible? Absolutely! If someone had told me that a few months ...

This week, HDPE prices down adjusted in some parts of Asia while quoting flat in the Far East Asian region. An industry source in Asia on condition of anonymity informed a Polymerupdate team member, ...